Adding apex context-model module

Change-Id: Ia80b2caa0f76ecd7a80ece79e5cf88ac9de048ac
Issue-ID: POLICY-856
Signed-off-by: waqas.ikram <waqas.ikram@ericsson.com>

7 files changed, 1007 insertions, 0 deletions

diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextAlbums.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextAlbums.java
new file mode 100644
index 000000000..476cda9a3
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextAlbums.java
@@ -0,0 +1,210 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult.ValidationResult;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbum;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbums;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestContextAlbums {
+
+    @Test
+    public void testContextAlbums() {
+        assertNotNull(new AxContextAlbum());
+        assertNotNull(new AxContextAlbum(new AxArtifactKey()));
+        assertNotNull(new AxContextAlbum(new AxArtifactKey(), "AlbumScope", false, new AxArtifactKey()));
+
+        final AxArtifactKey albumKey = new AxArtifactKey("AlbumName", "0.0.1");
+        final AxArtifactKey albumSchemaKey = new AxArtifactKey("AlbumSchemaName", "0.0.1");
+
+        final AxContextAlbum album = new AxContextAlbum(albumKey, "AlbumScope", false, albumSchemaKey);
+        assertNotNull(album);
+
+        final AxArtifactKey newKey = new AxArtifactKey("NewAlbumName", "0.0.1");
+        album.setKey(newKey);
+        assertEquals("NewAlbumName:0.0.1", album.getKey().getID());
+        assertEquals("NewAlbumName:0.0.1", album.getKeys().get(0).getID());
+        album.setKey(albumKey);
+
+        try {
+            album.setScope("");
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertEquals("parameter \"scope\": value \"\", does not match regular expression \"[A-Za-z0-9\\-_]+\"",
+                    e.getMessage());
+        }
+
+        album.setScope("NewAlbumScope");
+        assertEquals("NewAlbumScope", album.getScope());
+
+        assertEquals(false, album.isWritable());
+        album.setWritable(true);
+        assertEquals(true, album.isWritable());
+
+        final AxArtifactKey newSchemaKey = new AxArtifactKey("NewAlbumSchemaName", "0.0.1");
+        album.setItemSchema(newSchemaKey);
+        assertEquals("NewAlbumSchemaName:0.0.1", album.getItemSchema().getID());
+        album.setItemSchema(albumSchemaKey);
+
+        AxValidationResult result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        album.setKey(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        album.setKey(newKey);
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        album.setScope("UNDEFINED");
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        album.setScope("NewAlbumScope");
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        album.setItemSchema(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        album.setItemSchema(albumSchemaKey);
+        result = new AxValidationResult();
+        result = album.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        album.clean();
+
+        final AxContextAlbum clonedAlbum = new AxContextAlbum(album);
+        assertEquals(
+                "AxContextAlbum:(key=AxArtifactKey:(name=NewAlbumName,version=0.0.1),scope=NewAlbumScope,isWritable=true,itemSchema=AxArtifactKey:(name=AlbumSchemaName,version=0.0.1))",
+                clonedAlbum.toString());
+
+        assertFalse(album.hashCode() == 0);
+
+        assertTrue(album.equals(album));
+        assertTrue(album.equals(clonedAlbum));
+        assertFalse(album.equals(null));
+        assertFalse(album.equals("Hello"));
+        assertFalse(album.equals(new AxContextAlbum(new AxArtifactKey(), "Scope", false, AxArtifactKey.getNullKey())));
+        assertFalse(album.equals(new AxContextAlbum(newKey, "Scope", false, AxArtifactKey.getNullKey())));
+        assertFalse(album.equals(new AxContextAlbum(newKey, "NewAlbumScope", false, AxArtifactKey.getNullKey())));
+        assertFalse(album.equals(new AxContextAlbum(newKey, "NewAlbumScope", true, AxArtifactKey.getNullKey())));
+        assertTrue(album.equals(new AxContextAlbum(newKey, "NewAlbumScope", true, albumSchemaKey)));
+
+        assertEquals(0, album.compareTo(album));
+        assertEquals(0, album.compareTo(clonedAlbum));
+        assertNotEquals(0, album.compareTo(null));
+        assertNotEquals(0, album.compareTo(new AxArtifactKey()));
+        assertNotEquals(0,
+                album.compareTo(new AxContextAlbum(new AxArtifactKey(), "Scope", false, AxArtifactKey.getNullKey())));
+        assertNotEquals(0, album.compareTo(new AxContextAlbum(newKey, "Scope", false, AxArtifactKey.getNullKey())));
+        assertNotEquals(0,
+                album.compareTo(new AxContextAlbum(newKey, "NewAlbumScope", false, AxArtifactKey.getNullKey())));
+        assertNotEquals(0,
+                album.compareTo(new AxContextAlbum(newKey, "NewAlbumScope", true, AxArtifactKey.getNullKey())));
+        assertEquals(0, album.compareTo(new AxContextAlbum(newKey, "NewAlbumScope", true, albumSchemaKey)));
+
+        final AxContextAlbums albums = new AxContextAlbums();
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        // Observation, no albums in album map
+        albums.setKey(new AxArtifactKey("AlbumsKey", "0.0.1"));
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.OBSERVATION, result.getValidationResult());
+
+        albums.getAlbumsMap().put(newKey, album);
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        albums.getAlbumsMap().put(AxArtifactKey.getNullKey(), null);
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        albums.getAlbumsMap().remove(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        albums.getAlbumsMap().put(new AxArtifactKey("NullValueKey", "0.0.1"), null);
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        albums.getAlbumsMap().remove(new AxArtifactKey("NullValueKey", "0.0.1"));
+        result = new AxValidationResult();
+        result = albums.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        albums.clean();
+
+        final AxContextAlbums clonedAlbums = new AxContextAlbums(albums);
+        assertTrue(clonedAlbums.toString()
+                .startsWith("AxContextAlbums:(AxContextAlbums:(key=AxArtifactKey:(name=AlbumsKey,version=0.0.1)"));
+
+        assertFalse(albums.hashCode() == 0);
+
+        assertTrue(albums.equals(albums));
+        assertTrue(albums.equals(clonedAlbums));
+        assertFalse(albums.equals(null));
+        assertFalse(albums.equals("Hello"));
+        assertFalse(albums.equals(new AxContextAlbums(new AxArtifactKey())));
+
+        assertEquals(0, albums.compareTo(albums));
+        assertEquals(0, albums.compareTo(clonedAlbums));
+        assertNotEquals(0, albums.compareTo(null));
+        assertNotEquals(0, albums.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, albums.compareTo(new AxContextAlbums(new AxArtifactKey())));
+
+        clonedAlbums.get(newKey).setScope("YetAnotherScope");
+        assertNotEquals(0, albums.compareTo(clonedAlbums));
+
+        assertEquals("NewAlbumName", albums.get("NewAlbumName").getKey().getName());
+        assertEquals("NewAlbumName", albums.get("NewAlbumName", "0.0.1").getKey().getName());
+        assertEquals(1, albums.getAll("NewAlbumName", "0.0.1").size());
+        assertEquals(0, albums.getAll("NonExistantAlbumName").size());
+    }
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextModel.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextModel.java
new file mode 100644
index 000000000..cab40f316
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextModel.java
@@ -0,0 +1,82 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbums;
+import org.onap.apex.model.contextmodel.concepts.AxContextModel;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchemas;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestContextModel {
+
+    @Test
+    public void test() {
+        assertNotNull(new AxContextModel());
+        assertNotNull(new AxContextModel(new AxArtifactKey()));
+        assertNotNull(new AxContextModel(new AxArtifactKey(), new AxContextSchemas(), new AxKeyInformation()));
+        assertNotNull(new AxContextModel(new AxArtifactKey(), new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation()));
+        
+        final AxArtifactKey modelKey = new AxArtifactKey("ModelKey", "0.0.1");
+        final AxArtifactKey schemasKey = new AxArtifactKey("SchemasKey", "0.0.1");
+        final AxArtifactKey albumsKey = new AxArtifactKey("SchemasKey", "0.0.1");
+        final AxArtifactKey keyInfoKey = new AxArtifactKey("SchemasKey", "0.0.1");
+        final AxContextModel model = new AxContextModel(modelKey, new AxContextSchemas(schemasKey), new AxContextAlbums(albumsKey), new AxKeyInformation(keyInfoKey));
+        model.register();
+        
+        model.clean();
+        assertNotNull(model);
+        assertEquals("AxContextModel:(AxContextModel:(key=AxArtifactKey:", model.toString().substring(0, 50));
+        
+        final AxContextModel clonedModel = new AxContextModel(model);
+
+        assertFalse(model.hashCode() == 0);
+
+        assertTrue(model.equals(model));
+        assertTrue(model.equals(clonedModel));
+        assertFalse(model.equals("Hello"));
+        assertFalse(model.equals(new AxContextModel(new AxArtifactKey())));
+        assertFalse(model.equals(new AxContextModel(new AxArtifactKey(), new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation())));
+        assertFalse(model.equals(new AxContextModel(modelKey, new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation())));
+        assertFalse(model.equals(new AxContextModel(modelKey, new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation(keyInfoKey))));
+        assertFalse(model.equals(new AxContextModel(modelKey, new AxContextSchemas(schemasKey), new AxContextAlbums(), new AxKeyInformation(keyInfoKey))));
+        assertTrue(model.equals(new AxContextModel(modelKey, new AxContextSchemas(schemasKey), new AxContextAlbums(albumsKey), new AxKeyInformation(keyInfoKey))));
+
+        assertEquals(0, model.compareTo(model));
+        assertEquals(0, model.compareTo(clonedModel));
+        assertNotEquals(0, model.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, model.compareTo(new AxContextModel(new AxArtifactKey(), new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation())));
+        assertNotEquals(0, model.compareTo(new AxContextModel(modelKey, new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation())));
+        assertNotEquals(0, model.compareTo(new AxContextModel(modelKey, new AxContextSchemas(), new AxContextAlbums(), new AxKeyInformation(keyInfoKey))));
+        assertNotEquals(0, model.compareTo(new AxContextModel(modelKey, new AxContextSchemas(schemasKey), new AxContextAlbums(), new AxKeyInformation(keyInfoKey))));
+        assertEquals(0, model.compareTo(new AxContextModel(modelKey, new AxContextSchemas(schemasKey), new AxContextAlbums(albumsKey), new AxKeyInformation(keyInfoKey))));
+    }
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextSchemas.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextSchemas.java
new file mode 100644
index 000000000..1e81c5a95
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/concepts/TestContextSchemas.java
@@ -0,0 +1,196 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult.ValidationResult;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchema;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchemas;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestContextSchemas {
+
+    @Test
+    public void testContextSchemas() {
+        assertNotNull(new AxContextSchema());
+        assertNotNull(new AxContextSchema(new AxArtifactKey(), "SchemaFlavour", "SchemaDefinition"));
+
+        final AxContextSchema schema =
+                new AxContextSchema(new AxArtifactKey("SchemaName", "0.0.1"), "SchemaFlavour", "SchemaDefinition");
+        assertNotNull(schema);
+
+        final AxArtifactKey newKey = new AxArtifactKey("NewSchemaName", "0.0.1");
+        schema.setKey(newKey);
+        assertEquals("NewSchemaName:0.0.1", schema.getKey().getID());
+        assertEquals("NewSchemaName:0.0.1", schema.getKeys().get(0).getID());
+
+        try {
+            schema.setSchemaFlavour("");
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertEquals(
+                    "parameter \"schemaFlavour\": value \"\", does not match regular expression \"[A-Za-z0-9\\-_]+\"",
+                    e.getMessage());
+        }
+
+        schema.setSchemaFlavour("NewSchemaFlavour");
+        assertEquals("NewSchemaFlavour", schema.getSchemaFlavour());
+
+        schema.setSchema("NewSchemaDefinition");
+        assertEquals("NewSchemaDefinition", schema.getSchema());
+
+        AxValidationResult result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schema.setKey(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schema.setKey(newKey);
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schema.setSchemaFlavour("UNDEFINED");
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schema.setSchemaFlavour("NewSchemaFlavour");
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schema.setSchema("");
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schema.setSchema("NewSchemaDefinition");
+        result = new AxValidationResult();
+        result = schema.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schema.clean();
+
+        final AxContextSchema clonedSchema = new AxContextSchema(schema);
+        assertEquals(
+                "AxContextSchema:(key=AxArtifactKey:(name=NewSchemaName,version=0.0.1),schemaFlavour=NewSchemaFlavour,schemaDefinition=NewSchemaDefinition)",
+                clonedSchema.toString());
+
+        assertFalse(schema.hashCode() == 0);
+
+        assertTrue(schema.equals(schema));
+        assertTrue(schema.equals(clonedSchema));
+        assertFalse(schema.equals(null));
+        assertFalse(schema.equals("Hello"));
+        assertFalse(schema.equals(new AxContextSchema(new AxArtifactKey(), "Flavour", "Def")));
+        assertFalse(schema.equals(new AxContextSchema(newKey, "Flavour", "Def")));
+        assertFalse(schema.equals(new AxContextSchema(newKey, "NewSchemaFlavour", "Def")));
+        assertTrue(schema.equals(new AxContextSchema(newKey, "NewSchemaFlavour", "NewSchemaDefinition")));
+
+        assertEquals(0, schema.compareTo(schema));
+        assertEquals(0, schema.compareTo(clonedSchema));
+        assertNotEquals(0, schema.compareTo(null));
+        assertNotEquals(0, schema.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, schema.compareTo(new AxContextSchema(new AxArtifactKey(), "Flavour", "Def")));
+        assertNotEquals(0, schema.compareTo(new AxContextSchema(newKey, "Flavour", "Def")));
+        assertNotEquals(0, schema.compareTo(new AxContextSchema(newKey, "NewSchemaFlavour", "Def")));
+        assertEquals(0, schema.compareTo(new AxContextSchema(newKey, "NewSchemaFlavour", "NewSchemaDefinition")));
+
+        final AxContextSchemas schemas = new AxContextSchemas();
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        // Still invalid, no schemas in schema map
+        schemas.setKey(new AxArtifactKey("SchemasKey", "0.0.1"));
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schemas.getSchemasMap().put(newKey, schema);
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schemas.getSchemasMap().put(AxArtifactKey.getNullKey(), null);
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schemas.getSchemasMap().remove(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schemas.getSchemasMap().put(new AxArtifactKey("NullValueKey", "0.0.1"), null);
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        schemas.getSchemasMap().remove(new AxArtifactKey("NullValueKey", "0.0.1"));
+        result = new AxValidationResult();
+        result = schemas.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        schemas.clean();
+
+        final AxContextSchemas clonedSchemas = new AxContextSchemas(schemas);
+        assertTrue(clonedSchemas.toString()
+                .startsWith("AxContextSchemas:(key=AxArtifactKey:(name=SchemasKey,version=0.0.1),"));
+
+        assertFalse(schemas.hashCode() == 0);
+
+        assertTrue(schemas.equals(schemas));
+        assertTrue(schemas.equals(clonedSchemas));
+        assertFalse(schemas.equals(null));
+        assertFalse(schemas.equals("Hello"));
+        assertFalse(schemas.equals(new AxContextSchemas(new AxArtifactKey())));
+
+        assertEquals(0, schemas.compareTo(schemas));
+        assertEquals(0, schemas.compareTo(clonedSchemas));
+        assertNotEquals(0, schemas.compareTo(null));
+        assertNotEquals(0, schemas.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, schemas.compareTo(new AxContextSchemas(new AxArtifactKey())));
+
+        clonedSchemas.get(newKey).setSchemaFlavour("YetAnotherFlavour");
+        assertNotEquals(0, schemas.compareTo(clonedSchemas));
+
+        assertEquals("NewSchemaName", schemas.get("NewSchemaName").getKey().getName());
+        assertEquals("NewSchemaName", schemas.get("NewSchemaName", "0.0.1").getKey().getName());
+        assertEquals(1, schemas.getAll("NewSchemaName", "0.0.1").size());
+        assertEquals(0, schemas.getAll("NonExistantSchemaName").size());
+    }
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModel.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModel.java
new file mode 100644
index 000000000..0723a6827
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModel.java
@@ -0,0 +1,127 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.handling;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.dao.DAOParameters;
+import org.onap.apex.model.basicmodel.test.TestApexModel;
+import org.onap.apex.model.contextmodel.concepts.AxContextModel;
+
+public class TestApexContextModel {
+    private Connection connection;
+    TestApexModel<AxContextModel> testApexModel;
+
+    @Before
+    public void setup() throws Exception {
+        Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();
+        connection = DriverManager.getConnection("jdbc:derby:memory:apex_test;create=true");
+
+        testApexModel = new TestApexModel<AxContextModel>(AxContextModel.class, new TestApexContextModelCreator());
+    }
+
+    @After
+    public void teardown() throws Exception {
+        connection.close();
+        new File("derby.log").delete();
+    }
+
+    @Test
+    public void testModelValid() throws Exception {
+        final AxValidationResult result = testApexModel.testApexModelValid();
+        assertTrue(result.toString().equals(VALID_MODEL_STRING));
+    }
+
+    @Test
+    public void testApexModelVaidateObservation() throws Exception {
+        final AxValidationResult result = testApexModel.testApexModelVaidateObservation();
+        assertTrue(result.toString().equals(OBSERVATION_MODEL_STRING));
+    }
+
+    @Test
+    public void testApexModelVaidateWarning() throws Exception {
+        final AxValidationResult result = testApexModel.testApexModelVaidateWarning();
+        assertTrue(result.toString().equals(WARNING_MODEL_STRING));
+    }
+
+    @Test
+    public void testModelVaidateInvalidModel() throws Exception {
+        final AxValidationResult result = testApexModel.testApexModelVaidateInvalidModel();
+        assertTrue(result.toString().equals(INVALID_MODEL_STRING));
+    }
+
+    @Test
+    public void testModelVaidateMalstructured() throws Exception {
+        final AxValidationResult result = testApexModel.testApexModelVaidateMalstructured();
+        assertTrue(result.toString().equals(INVALID_MODEL_MALSTRUCTURED_STRING));
+    }
+
+    @Test
+    public void testModelWriteReadXML() throws Exception {
+        testApexModel.testApexModelWriteReadXML();
+    }
+
+    @Test
+    public void testModelWriteReadJSON() throws Exception {
+        testApexModel.testApexModelWriteReadJSON();
+    }
+
+    @Test
+    public void testModelWriteReadJPA() throws Exception {
+        final DAOParameters daoParameters = new DAOParameters();
+        daoParameters.setPluginClass("org.onap.apex.model.basicmodel.dao.impl.DefaultApexDao");
+        daoParameters.setPersistenceUnit("DAOTest");
+
+        testApexModel.testApexModelWriteReadJPA(daoParameters);
+    }
+
+    private static final String VALID_MODEL_STRING = "***validation of model successful***";
+
+    private static final String OBSERVATION_MODEL_STRING =
+            "\n" + "***observations noted during validation of model***\n"
+                    + "AxArtifactKey:(name=contextAlbum1,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:OBSERVATION:description is blank\n"
+                    + "********************************";
+
+    private static final String WARNING_MODEL_STRING = "\n" + "***warnings issued during validation of model***\n"
+            + "AxArtifactKey:(name=contextAlbum1,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:WARNING:UUID is a zero UUID: 00000000-0000-0000-0000-000000000000\n"
+            + "********************************";
+
+    private static final String INVALID_MODEL_STRING = "\n" + "***validation of model failed***\n"
+            + "AxArtifactKey:(name=StringType,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextSchema:INVALID:no schemaDefinition specified, schemaDefinition may not be blank\n"
+            + "AxArtifactKey:(name=contextAlbum0,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextAlbum:INVALID:scope is not defined\n"
+            + "********************************";
+
+    private static final String INVALID_MODEL_MALSTRUCTURED_STRING = "\n" + "***validation of model failed***\n"
+            + "AxArtifactKey:(name=ContextModel,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextModel:INVALID:key information not found for key AxArtifactKey:(name=contextAlbum1,version=0.0.2)\n"
+            + "AxArtifactKey:(name=contextAlbum1,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextModel:WARNING:key not found for key information entry\n"
+            + "AxArtifactKey:(name=ContextSchemas,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextSchemas:INVALID:key on schemas entry AxArtifactKey:(name=MapType,version=0.0.1) does not equal entry key AxArtifactKey:(name=MapType,version=0.0.2)\n"
+            + "AxArtifactKey:(name=contextAlbums,version=0.0.1):org.onap.apex.model.contextmodel.concepts.AxContextAlbums:INVALID:key on context album entry key AxArtifactKey:(name=contextAlbum1,version=0.0.1) does not equal context album value key AxArtifactKey:(name=contextAlbum1,version=0.0.2)\n"
+            + "********************************";
+
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModelCreator.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModelCreator.java
new file mode 100644
index 000000000..b53d8d04d
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestApexContextModelCreator.java
@@ -0,0 +1,106 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.handling;
+
+import java.util.UUID;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.test.TestApexModelCreator;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbum;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbums;
+import org.onap.apex.model.contextmodel.concepts.AxContextModel;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchema;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchemas;
+
+public class TestApexContextModelCreator implements TestApexModelCreator<AxContextModel> {
+
+	@Override
+	public AxContextModel getModel() {
+		final AxContextSchema schema0 = new AxContextSchema(new AxArtifactKey("StringType", "0.0.1"), "Java", "com.ericsson.apex.concept.TestContextItem000");
+		final AxContextSchema schema1 = new AxContextSchema(new AxArtifactKey("MapType", "0.0.1"),    "Java", "com.ericsson.apex.concept.TestContextItem00A");
+
+		final AxContextSchemas contextSchemas = new AxContextSchemas(new AxArtifactKey("ContextSchemas", "0.0.1"));
+		contextSchemas.getSchemasMap().put(schema0.getKey(), schema0);
+		contextSchemas.getSchemasMap().put(schema1.getKey(), schema1);
+
+		final AxContextAlbum contextAlbum0 = new AxContextAlbum(new AxArtifactKey("contextAlbum0", "0.0.1"), "APPLICATION", true,  schema0.getKey());
+		final AxContextAlbum contextAlbum1 = new AxContextAlbum(new AxArtifactKey("contextAlbum1", "0.0.1"), "GLOBAL"     , false, schema1.getKey());
+
+		final AxContextAlbums axContext = new AxContextAlbums(new AxArtifactKey("contextAlbums", "0.0.1"));
+		axContext.getAlbumsMap().put(contextAlbum0.getKey(), contextAlbum0);
+		axContext.getAlbumsMap().put(contextAlbum1.getKey(), contextAlbum1);
+
+		final AxKeyInformation keyInformation = new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1"));
+		final AxContextModel contextModel = new AxContextModel(new AxArtifactKey("ContextModel", "0.0.1"), contextSchemas, axContext, keyInformation);
+
+		contextModel.setKeyInformation(keyInformation);
+		contextModel.getKeyInformation().getKeyInfoMap().put(schema0       .getKey(), new AxKeyInfo(schema0       .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000001"), "axContextSchema0"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(schema1       .getKey(), new AxKeyInfo(schema1       .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000002"), "axContextSchema1"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(contextSchemas.getKey(), new AxKeyInfo(contextSchemas.getKey(), UUID.fromString("00000000-0000-0000-0000-000000000003"), "ContextSchemas"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(contextAlbum0 .getKey(), new AxKeyInfo(contextAlbum0 .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000004"), "contextAlbum0"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(contextAlbum1 .getKey(), new AxKeyInfo(contextAlbum1 .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000005"), "contextAlbum1"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(axContext     .getKey(), new AxKeyInfo(axContext     .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000006"), "axContext"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(contextModel  .getKey(), new AxKeyInfo(contextModel  .getKey(), UUID.fromString("00000000-0000-0000-0000-000000000007"), "contextModel"));
+		contextModel.getKeyInformation().getKeyInfoMap().put(keyInformation.getKey(), new AxKeyInfo(keyInformation.getKey(), UUID.fromString("00000000-0000-0000-0000-000000000008"), "keyInformation"));
+
+		return contextModel;
+	}
+
+	@Override
+	public AxContextModel getInvalidModel() {
+		final AxContextModel contextModel = getModel();
+		
+		contextModel.getAlbums().get(new AxArtifactKey("contextAlbum0", "0.0.1")).setScope("UNDEFINED");
+
+		contextModel.getSchemas().get(new AxArtifactKey("StringType", "0.0.1")).setSchema("");
+
+		return contextModel;
+	}
+
+	public AxContextModel getMalstructuredModel() {
+		final AxContextModel contextModel = getModel();
+		
+		contextModel.getAlbums().get(new AxArtifactKey("contextAlbum1", "0.0.1")).setKey(new AxArtifactKey("contextAlbum1", "0.0.2"));;
+		contextModel.getSchemas().get(new AxArtifactKey("MapType", "0.0.1")).setKey(new AxArtifactKey("MapType", "0.0.2"));;
+
+		return contextModel;
+	}
+
+	@Override
+	public AxContextModel getObservationModel() {
+		final AxContextModel contextModel = getModel();
+		
+		contextModel.getKeyInformation().get("contextAlbum1", "0.0.1").setDescription("");
+
+		return contextModel;
+	}
+
+	@Override
+	public AxContextModel getWarningModel() {
+		final AxContextModel contextModel = getModel();
+		
+		contextModel.getKeyInformation().get("contextAlbum1", "0.0.1").setUuid(UUID.fromString("00000000-0000-0000-0000-000000000000"));
+
+		return contextModel;
+	}
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparison.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparison.java
new file mode 100644
index 000000000..fe87509b9
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparison.java
@@ -0,0 +1,164 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.handling;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbum;
+import org.onap.apex.model.contextmodel.concepts.AxContextModel;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchema;
+import org.onap.apex.model.contextmodel.handling.ContextComparer;
+import org.onap.policy.apex.model.utilities.comparison.KeyedMapDifference;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestContextComparison {
+    private AxContextModel emptyModel;
+    private AxContextModel fullModel;
+    private AxContextModel noGlobalContextModel;
+    private AxContextModel shellModel;
+    private AxContextModel singleEntryModel;
+
+    @Before
+    public void getContext() {
+        final TestContextComparisonFactory factory = new TestContextComparisonFactory();
+        emptyModel           = factory.getEmptyModel();
+        fullModel            = factory.getFullModel();
+        noGlobalContextModel = factory.getNoGlobalContextModel();
+        shellModel           = factory.getShellModel();
+        singleEntryModel     = factory.getSingleEntryModel();
+    }
+    
+    @Test
+    public void testEmptyEmpty() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(emptyModel.getSchemas(), emptyModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(emptyModel.getSchemas().getSchemasMap().equals(schemaResult.getIdenticalValues()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(emptyModel.getAlbums(), emptyModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(emptyModel.getAlbums().getAlbumsMap().equals(albumResult.getIdenticalValues()));
+    }
+    
+    @Test
+    public void testEmptyFull() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(emptyModel.getSchemas(), fullModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(fullModel.getSchemas().getSchemasMap().equals(schemaResult.getRightOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(emptyModel.getAlbums(), fullModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(fullModel.getAlbums().getAlbumsMap().equals(albumResult.getRightOnly()));
+    }
+    
+    @Test
+    public void testFullEmpty() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(fullModel.getSchemas(), emptyModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(fullModel.getSchemas().getSchemasMap().equals(schemaResult.getLeftOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(fullModel.getAlbums(), emptyModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(fullModel.getAlbums().getAlbumsMap().equals(albumResult.getLeftOnly()));
+    }
+    
+    @Test
+    public void testEmptyNoGlobalContext() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(emptyModel.getSchemas(), noGlobalContextModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(noGlobalContextModel.getSchemas().getSchemasMap().equals(schemaResult.getRightOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(emptyModel.getAlbums(), noGlobalContextModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(noGlobalContextModel.getAlbums().getAlbumsMap().equals(albumResult.getRightOnly()));
+    }
+    
+    @Test
+    public void testNoGlobalContextEmpty() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(noGlobalContextModel.getSchemas(), emptyModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(noGlobalContextModel.getSchemas().getSchemasMap().equals(schemaResult.getLeftOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(noGlobalContextModel.getAlbums(), emptyModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(noGlobalContextModel.getAlbums().getAlbumsMap().equals(albumResult.getLeftOnly()));
+    }
+    
+    @Test
+    public void testEmptyShell() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(emptyModel.getSchemas(), shellModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(shellModel.getSchemas().getSchemasMap().equals(schemaResult.getRightOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(emptyModel.getAlbums(), shellModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(shellModel.getAlbums().getAlbumsMap().equals(albumResult.getRightOnly()));
+    }
+    
+    @Test
+    public void testShellEmpty() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(shellModel.getSchemas(), emptyModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(shellModel.getSchemas().getSchemasMap().equals(schemaResult.getLeftOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(shellModel.getAlbums(), emptyModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(shellModel.getAlbums().getAlbumsMap().equals(albumResult.getLeftOnly()));
+    }
+    
+    @Test
+    public void testEmptySingleEntry() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(emptyModel.getSchemas(), singleEntryModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(singleEntryModel.getSchemas().getSchemasMap().equals(schemaResult.getRightOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(emptyModel.getAlbums(), singleEntryModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(singleEntryModel.getAlbums().getAlbumsMap().equals(albumResult.getRightOnly()));
+    }
+    
+    @Test
+    public void testSingleEntryEmpty() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(singleEntryModel.getSchemas(), emptyModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(singleEntryModel.getSchemas().getSchemasMap().equals(schemaResult.getLeftOnly()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(singleEntryModel.getAlbums(), emptyModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(singleEntryModel.getAlbums().getAlbumsMap().equals(albumResult.getLeftOnly()));
+    }
+    
+    @Test
+    public void testFullFull() {
+        final KeyedMapDifference<AxArtifactKey, AxContextSchema> schemaResult = new ContextComparer().compare(fullModel.getSchemas(), fullModel.getSchemas());
+        assertNotNull(schemaResult);
+        assertTrue(fullModel.getSchemas().getSchemasMap().equals(schemaResult.getIdenticalValues()));
+
+        final KeyedMapDifference<AxArtifactKey, AxContextAlbum> albumResult = new ContextComparer().compare(fullModel.getAlbums(), fullModel.getAlbums());
+        assertNotNull(albumResult);
+        assertTrue(fullModel.getAlbums().getAlbumsMap().equals(albumResult.getIdenticalValues()));
+    }
+}
diff --git a/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparisonFactory.java b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparisonFactory.java
new file mode 100644
index 000000000..1850c222d
--- /dev/null
+++ b/model/context-model/src/test/java/org/onap/apex/model/contextmodel/handling/TestContextComparisonFactory.java
@@ -0,0 +1,122 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.contextmodel.handling;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.contextmodel.concepts.AxContextAlbum;
+import org.onap.apex.model.contextmodel.concepts.AxContextModel;
+import org.onap.apex.model.contextmodel.concepts.AxContextSchema;
+
+/**
+ * This class creates sample Policy Models
+ * 
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestContextComparisonFactory {
+
+    public AxContextModel getFullModel() {
+        final AxContextSchema testContextSchema000 = new AxContextSchema(new AxArtifactKey("TestContextSchema000", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema000");
+        final AxContextSchema testContextSchema00A = new AxContextSchema(new AxArtifactKey("TestContextSchema00A", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema00A");
+        final AxContextSchema testContextSchema00C = new AxContextSchema(new AxArtifactKey("TestContextSchema00C", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema00C");
+
+        final AxContextAlbum externalContextAlbum = new AxContextAlbum(new AxArtifactKey("ExternalContextAlbum", "0.0.1"), "EXTERNAL", false,
+                testContextSchema000.getKey());
+        final AxContextAlbum globalContextAlbum = new AxContextAlbum(new AxArtifactKey("GlobalContextAlbum", "0.0.1"), "GLOBAL", true, testContextSchema00A.getKey());
+        final AxContextAlbum policy0ContextAlbum = new AxContextAlbum(new AxArtifactKey("Policy0ContextAlbum", "0.0.1"), "APPLICATION", true,
+                testContextSchema00C.getKey());
+        final AxContextAlbum policy1ContextAlbum = new AxContextAlbum(new AxArtifactKey("Policy1ContextAlbum ", "0.0.1"), "APPLICATION", true,
+                testContextSchema00C.getKey());
+
+        final AxContextModel contextModel = new AxContextModel(new AxArtifactKey("ContextModel", "0.0.1"));
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema000.getKey(), testContextSchema000);
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema00A.getKey(), testContextSchema00A);
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema00C.getKey(), testContextSchema00C);
+
+        contextModel.getAlbums().getAlbumsMap().put(externalContextAlbum.getKey(), externalContextAlbum);
+        contextModel.getAlbums().getAlbumsMap().put(globalContextAlbum.getKey(), globalContextAlbum);
+        contextModel.getAlbums().getAlbumsMap().put(policy0ContextAlbum.getKey(), policy0ContextAlbum);
+        contextModel.getAlbums().getAlbumsMap().put(policy1ContextAlbum.getKey(), policy1ContextAlbum);
+
+        return contextModel;
+    }
+
+    public AxContextModel getEmptyModel() {
+        return new AxContextModel(new AxArtifactKey("Context", "0.0.1"));
+    }
+
+    public AxContextModel getShellModel() {
+        final AxContextSchema testContextSchema000 = new AxContextSchema(new AxArtifactKey("TestContextSchema000", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema000");
+        final AxContextSchema testContextSchema00A = new AxContextSchema(new AxArtifactKey("TestContextSchema00A", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema00A");
+        final AxContextSchema testContextSchema00C = new AxContextSchema(new AxArtifactKey("TestContextSchema00C", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema00C");
+
+        final AxContextModel contextModel = new AxContextModel(new AxArtifactKey("ContextModel", "0.0.1"));
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema000.getKey(), testContextSchema000);
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema00A.getKey(), testContextSchema00A);
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema00C.getKey(), testContextSchema00C);
+
+        return contextModel;
+    }
+
+    public AxContextModel getSingleEntryModel() {
+        final AxContextSchema testContextSchema000 = new AxContextSchema(new AxArtifactKey("TestContextSchema000", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema000");
+
+        final AxContextAlbum policy1ContextAlbum = new AxContextAlbum(new AxArtifactKey("Policy1ContextAlbum ", "0.0.1"), "APPLICATION", true,
+                testContextSchema000.getKey());
+
+        final AxContextModel contextModel = new AxContextModel(new AxArtifactKey("ContextModel", "0.0.1"));
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema000.getKey(), testContextSchema000);
+
+        contextModel.getAlbums().getAlbumsMap().put(policy1ContextAlbum.getKey(), policy1ContextAlbum);
+
+        return contextModel;
+    }
+
+    public AxContextModel getNoGlobalContextModel() {
+        final AxContextSchema testContextSchema000 = new AxContextSchema(new AxArtifactKey("TestContextSchema000", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema000");
+        final AxContextSchema testContextSchema00C = new AxContextSchema(new AxArtifactKey("TestContextSchema00C", "0.0.1"), "JAVA",
+                "com.ericsson.apex.concept.TestContextSchema00C");
+
+        final AxContextAlbum externalContextAlbum = new AxContextAlbum(new AxArtifactKey("ExternalContextAlbum", "0.0.1"), "EXTERNAL", false,
+                testContextSchema000.getKey());
+        final AxContextAlbum policy0ContextAlbum = new AxContextAlbum(new AxArtifactKey("Policy0ContextAlbum", "0.0.1"), "APPLICATION", true,
+                testContextSchema00C.getKey());
+        final AxContextAlbum policy1ContextAlbum = new AxContextAlbum(new AxArtifactKey("Policy1ContextAlbum ", "0.0.1"), "APPLICATION", true,
+                testContextSchema00C.getKey());
+
+        final AxContextModel contextModel = new AxContextModel(new AxArtifactKey("ContextModel", "0.0.1"));
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema000.getKey(), testContextSchema000);
+        contextModel.getSchemas().getSchemasMap().put(testContextSchema00C.getKey(), testContextSchema00C);
+
+        contextModel.getAlbums().getAlbumsMap().put(externalContextAlbum.getKey(), externalContextAlbum);
+        contextModel.getAlbums().getAlbumsMap().put(policy0ContextAlbum.getKey(), policy0ContextAlbum);
+        contextModel.getAlbums().getAlbumsMap().put(policy1ContextAlbum.getKey(), policy1ContextAlbum);
+
+        return contextModel;
+    }
+}